installed engine安装: install; erect; fix; mount; ...在: exist; be living飞行器: aerobat; air vehicle; beast; ...上: upper; up; upward发动机: engine; motor下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:安装在飞行器上发动机，即可在微信中查询翻译
